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[IA64] sys_mmap doesn't follow posix.1 when parameter len=0
authorZhang Yanmin <yanmin.zhang@intel.com>
Mon, 23 May 2005 00:47:00 +0000 (17:47 -0700)
committerTony Luck <tony.luck@intel.com>
Thu, 26 May 2005 17:19:07 +0000 (10:19 -0700)
commitd11cf326bd5e785cc5a3f5a3d3f4e3a5522f4fb7
tree56912a4b84f6db3aa1d615a4174b2c2845fe870etree | snapshot (tar.gz zip)
parentfe12e25ebdd195a57d3fd655061fd2525609b16bcommit | diff
[IA64] sys_mmap doesn't follow posix.1 when parameter len=0

In IA64 kernel, sys_mmap calls do_mmap2 and do_mmap2 returns addr if
len=0, which means the mmap sys call succeeds.

Posix.1 says:
The mmap() function shall fail if:
[EINVAL] The value of len is zero.

Here is a patch to fix it.

Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com>
Acked-by: David Mosberger <davidm@hpl.hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
arch/ia64/kernel/sys_ia64.c diff | blob | blame | history